Abstrak. Penelitian bertujuan untuk mengetahui morfologi dan anatomi tipe stomata dari famili piperaceae yang terdapat di Kota Langsa. Penelitian diharapkan dapat memberikan informasi kepada masyarakat dan mahasiswa tentang morfologi dan anatomi tipe stomata tanaman dari famili piperaceae. Hasil penelitian dapat dijadikan sebagai data awal tentang morfologi dan anatomi tumbuhan dari famili piperaceae yang terdapat di Kota Langsa. Metode yang digunakan diskriptif kualitatif untuk menggambarkan dan menginterpretasi tipe stomata pada daun famili piperaceae. Hasil penelitian tumbuhan famili piperaceae yang ditemukan di daerah kota langsa sebanyak lima spesies tanaman yaitu lada (Piper ningrum), suruhan (Peperomia pellucida), Sirih Kuning (Piper betle), sirih hijau (Piper betle), dan Merah (Piper crocatum). Maka dapat diketahui bahwa secara morofologi tumbuhan famili piperaceae merupakan kelompok tumbuhan dikotil. Pada umumnya family piperaceae memiliki ciri-ciri dengan sistem perakaran tunggang, dengan ciri-ciri batangnya vobubilis disertai dengan tampaknya nodus pada batang yang disertai dengan adanya sulur namun ada juga berbatang herba yang tumbuh tegak dengan percabangan batang monopodial. Walaupun kelima spesies tumbuhan tergolong dalam satu famili yang sama yaitu piperaceae, namun secara morfologi maupun anatomi tipe sel stomatanya memiliki perbedaan pada masing-masing spesies. Dari hasil penelitian ditemukan tiga tipe stomata pada tumbuhan family piperaceae yaitu Tipe stomata anomocytic, tipe tertracytic dan tipe cyclocytic.Kata kunci: morfologi, anatomi, tipe stomata, famili piperaceae. Abstract. The aim of this research is to know the morphology and anatomy of stomata type from piperaceae family in Langsa City. Research is expected to provide information to the community and students about the morphology and anatomy of plant stomatal types from the piperaceae family. The results can be used as early data about the morphology and anatomy of plants from the family piperaceae found in Langsa City. The method used is descriptive qualitative to describe and interpret the type of stomata on the leaves of the family piperaceae. Piper betel (Piper betle), Piper betle (Green Piper betle) and Red (Piper crocatum) betel (Piper betle), Piper betle (Piper betle), and Piper betel (Piper betel) were found in five different species of pepper (Piper ningrum). So it can be seen that the morofologi plant family piperaceae is a group dikotil plants. In general, the family piperaceae has characteristics with the root system of tunggang, with the trunk of vobubilis trunk accompanied by apparently nodes in the stem accompanied by the presence of tendrils but there is also trunked herbs that grow upright with the branching of monopodial rods. Although the five plant species belong to the same family of piperaceae, morphologically or anatomically, the stomatal cell type differs in each species. From the results of the study found three types of stomata in family plant piperaceae that is Anomocytic stomata type, tertracytic type and cyclocytic type.Keywords: morphology, anatomy, stomata type, family piperaceae
Myocardial infarction is one of chronic illnesses that has significant effects to patient's health related quality of life. This study tested three psychosocial factors (i.e. religious coping behaviour, cardiac anxiety and marital satisfaction) and two disease-related factors (i.e. left ventricular ejection fraction, comorbidity) in predicting health related quality of life in patients with post myocardial infarction in Indonesia. A cross sectional study included 170 patients with myocardial infarction was conducted. The patients completed four questionnaires: MacNew Health Related Quality of Life, Couple Satisfaction Index, Cardiac anxiety Questionnaire, and religious coping behaviour. Proposed model was tested using structural equation modelling. Results revealed that cardiac anxiety has a significant negative relationship with health-related quality of life. Marital satisfaction was a significant moderator in the relationship between cardiac anxiety and health related quality of life. There were no significant relationships among patient's comorbidity, left ventricular ejection fraction, religious coping behaviour and health related quality of life. Results of the study shed the light of the importance of protective effects of patient's immediate environment in shaping patient's health related quality of life.
Penelitian ini bertujuan untuk mengetahui hubungan pola asuh permissive negligent(pengabaian) ibu terhadap kecenderungan kenakalan remaja di Sekolah Menengah Atas(SMA) Negeri X. Penelitian ini menggunakan pendekatan kuantitatif dengan teknik analisis korelasi. Teknik sampling dalam penelitian ini menggunakan non-probability sampling. Sampel terdiri dari 128 siswa yang berada di SMAN X. Instrumen yang digunakan dalam penelitian ini adalah style of parenting questionnaire dan kuisoner kenakalan remaja. Analisis dilakukan menggunakan aplikasi SPSS (Statistical Product and Service Solutions). Hasil penelitian menggunakan uji statistik pearson product moment menunjukkan bahwa ada hubungan yang bermakna antara pola asuh permissive negligent ibu terhadap kecendrungan kenakalan remaja (r = 0.348, P = 0,000) yang berarti, yaitu semakin tinggi pola asuh permissive negligent ibu maka semakin tinggi kecendrungan kenakalan remaja.Kata kunci: Pola Asuh Permissive Negligent, Ibu, kenakalan, remaja
The study aims to know how social capital (trust, reciprocity, network) and implication on music studio that has influence in normal price, duration, and the choice of specification of the lease and recording on music studio in Malang. This study uses qualitative method by using indepth interview, observation, and documentation techniques. Based on the study, it is described that social capital component such as trust, reciprocity, and network have effect on less price, less duration, and the choice of specification of the lease. Music studios in Malang that apply the social capital in the transaction with customer will get more information about market and promotion from customer without cost.
<p>Telah dilakukan optimasi dan validasi metode penentuan asam glikolat dan asam laktat dalam krim menggunakan kromatografi cair kinerja tinggi. Pemisahan asam glikolat dan asam laktat dilakukan pada kolom fasa balik C-8menggunakan fasa gerak asam ortofosfat 0,1% dengan pH 3,5 dan detektor <em>UV-Visible</em>. Standar asam glikolat dan asam laktat dibuat dengan melarutkannya menggunakan asam ortofosfat 0,1% pH 3,5. Hasil eksperimen menunjukkan bahwa pada rentang konsentrasi 25 – 400 μg/mL, asam glikolat dan asam laktat memiliki kurva yang linear dengan koefisien korelasi masing-masing 0,9997 dan 0,9999. Uji presisi untuk larutan standar berkonsentrasi 100 µg/mL menghasilkan simpangan baku relatif sebesar 1,49% untuk asam glikolat dan 1,72% untuk asam laktat. Metode yang telah dioptimasi memberikan akurasi yang baik yang ditunjukkan oleh nilai perolehan kembali dari pengukuran tiga <em>spiked sample</em> dengan konsentrasi berbeda (50, 100, dan 150 μg/mL). Nilai perolehan kembali untuk masing-masing konsentrasi <em>spiked sample</em> adalah 97,12% ± 0,69; 98,76% ± 0,43; 100,80% ± 0,29 untuk asam glikolat dan 97,58% ± 0,39; 96,20% ± 0,68; 98,00% ± 0,38 untuk asam laktat. Batas deteksi dan batas kuantisasi untuk asam glikolat adalah 0,05 dan 0,17 μg/mL, sedangkan untuk asam laktat adalah 1,40 dan 4,67 μg/mL. Nilai kekasaran metode untuk asam glikolat pada hari pertama dan hari kedua adalah 1,43% dan 1,67%, sedangkan untuk asam laktat adalah 1,67% dan 1,25%. Metode yang telah dioptimasi dan divalidasi berpotensi untuk digunakan secara spesifik pada penentuan kadar asam glikolat dan asam laktat dalam krim.</p><p><strong>Optimization and Validation of Determination Methods of Glycolic Acid and Lactic Acid in Cream Using High-Performance Liquid Chromatography.</strong> A high-performance liquid chromatography analytical method for the determination of glycolic acid and lactic acid in creams has been optimized and validated. The separation was performed in a reverse phase C–8 column with a mobile phase of 0.1%, orthophosphoric acid at pH 3.5, and UV-Visible detector. The standard of glycolic acid and lactic acid was dissolved in 0.1% orthophosphoric acid at pH 3.5. The experimental results showed that in the concentration range of 25–400 μg/mL, glycolic acid and lactic acid showed a linear curve with a correlation coefficient of 0.9997 and 0.9999, respectively. The precision test for standard solutions containing 100 µg/mL resulted in a relative standard deviation of 1.49% for glycolic acid and 1.72% for lactic acid. The optimized method provided good accuracy indicated by the recovery of the measurement of three spiked samples in different concentrations (50, 100, and 150 μg/mL). The recovery for each concentration of the spiked sample was 97.12% ± 0.69; 98.76% ± 0.43; 100.80% ± 0.29 for glycolic acid and 97.58% ± 0.39; 96.20% ± 0.68; 98.00% ± 0.38 for lactic acid. The limit of detection and limit of quantization for glycolic acid was 0.05 and 0.17 μg/mL, and for lactic acid was 1.40 and 4.67 μg/mL. The ruggedness of the method for glycolic acid on the first day and second day was 1.43% and 1.67%, while for lactic acid, it was 1.67% and 1.25%. The method that has been optimized and validated shows the potential to be used specifically for the determination of glycolic acid and lactic acid in the cream.</p>
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.